Fluid cooler



Oct, 6, 1931. F. R. ERBACH 1,826,345

FLUID COOLER Filed April ll, 1927 Fmdgrth REYbaEi-i By M Patented Oct..6, 41931 UNITED STATES raient VPMEml OFFICE FREDERICK R. ERBACH, FDETROIT, MICHIGAN, ASSIGNOR T0 IKEL'VINATOR` C OR- y PORATION, OFDETROIT, MICHIGAN,\A CORPORATION 0F MICHIGAN FLUID coonnn My inventionrelates to refrigeration, and particularlyto providing a cabinet forrefrigerating materials used in dispensing soft drinks, and theprincipal object of my invention is vto provide a new and improved Vcabinet of thistype. In the drawings accompanying this specification andforming a part of this application I have shown, for

purposes of illustration, one form which my invention may assume, and inthese drawinofs:

Figure 1 is a horizontal section through a cabinet embodying myinvention,

Figure 2 is a section on the line 2-2 of l5 Figure 1, while Figure 3 isa section on the line 3-3 of Figure 1.

The embodiment of my invention disclosed herein comprises a cabinet 11for dispensing soft drinks provided with at least one refrigeratedcompartment 12 in which is disposed a series of coil containers 13 forsoft drink materials having their end turns 14 extended upwardly forconnection with the dispensing faucets (not shown).

As is well known in the business of dispensing soft drinks the materialsmust be refrigerated, but the refrigerating temperature must not bereduced to the freezing point. This would be likely to occur if therefrigerantI expansion unit were disposed in close proximity to thecontainer coils. I therefore provide a refrigerant expansion unitconsistl ing ofa coil 15 having its inlet 16 connected by a pipe 17 tothe outlet of a refrigerant condenser (not shown) and its outlet 18connected by a pipe 19 to the inlet of a refriger* ant compressingmechanism (not shown), and disposed at a point sufficiently removed fromthe material containing coils 13 to prevent any freezing of the contentsof the coils 13.

Such a disposition of the container coils and the expansion coilshowever -is not conducive to the best refrigeration asthe large body ofbrine between the coils 13 and the eX- pansion coil 15 decreases theyresponse of the expansion coil 15 to the demands of the materialcontaining coils 13. To increase the speed of reaction of the expansioncoil 15 to '1927; serial 'Na 182,650.

the demands of the materialfcontaining coils '17311 attach tothe'refrigerant expansion' coil I15 in position to extend intothe spacebetween the container coils 13 and the refrigerant expansion coil 15relatively large plates 16.55 formed of material having high heatconductivity thusprovidingvfor removal of the heat promptly from thecoils 13. Y

From the above disclosure it will be obvious to those skilled in the artthat I have tao provided a cabinet for refrigerating soft drinkmaterials in which an efficient refrigerating temperature can bemaintainedwithout danger of freezing such materials.

It will therefore be apparent to those C skilled in the art that theembodiment of my invention herein shown and described accomplishes atleast the principal object of my invention.

At the same time it also will be obvious to those skilled in the artthat the embodiment of my invention herein shown and described may bevariously changed and modified without. departing from the spirit of myinvention or sacrificing the advantages thereof, l5 and it thereforewill be understood that the disclosure herein is illustrative only, andthat my invention is not limited thereto.

I claim:

1. In a fluid cooling apparatus, a chamber' for containing hea-ttransfer liquid, a fluid circulating coil submerged in the liquid at oneside of said chamber, a` refrigerant expander submerged in the liquid atthe side of said chamber opposite said coil, said expand- 85 er beingconnected with apparatus adapted to cause limited congealing of the.liquid in said chamber therewith, and fins in intimate contact withsaid expander extending adjacent said fluid circulating coil, said finsbeing of -=9 sufficient length to penetrate the congealed Huid adheringto said expander. n

2. A refrigerator unit for refrigerating soft drink fluid required to beVmaintained at a temperaturehigher than freezing, com- 9 prising: acabinet having a refrigerated com-y partment containing a heat transferliquid, container means for the liquid to be refrigf erated located insaid compartment, refrigerant expander means located in said comif?partment at a distance from said container means, and fin means carriedby one of said means and extending outwardly therefrom into the spacebetween said container means and said expander means adjacent the otherof saidvr means.

3. A refrigerator unit forf refrigerating soft drink Huid required to bemaintained at a. temperature higher than freezing, comprising:alca-binet having afrefrigerated comel partment containing ayheat-transfer liquid, container means for the liquid to be refrig-kerated located in said compartment, refrigr erant expandermeanslocatedin said compartment at a distance from said containermeans-and iinmeans carried by'saidrefrigerantvexpander means andextending outwardly therefrom substantially across the space betweensaid"container means and said expander means.

`In testimony whereof I hereunto afiixrmy signature.

FREDERICK R. ERBAGH.

